New conductive polymeric materials: Cofacial assembly of mixed valent metallomacrocycles

This paper reports on an approach to control molecular stacking interactions in low-dimensional mixed valence materials by locking partially oxidized metallomacrocycles together in a cofacial orientation. Iodine doping of the face-to-face linked oligomers [M(Pc)O]_n (M = Si, Ge, Sn; Pc = phthalocyaninato) produces electrically conductive polymers {[M(Pc)O]I_xn with a wide range of x stoichiometries. Resonance Raman spectroscopy indicates that the iodine has oxidized the polymer chain. Polymer structure has been studied by X-ray powder diffraction, and it is possible to estimate interplanar spacings. Halogen doping of the [M(Pc)O]_n materials is accompanied by electrical conductivity increases as large 10⁷ (ohm cm)^?1; the general trend is $\text{σ}{}_{\mathrm{<mtext>Si</mtext>}}\text{? σ}{}_{\mathrm{<mtext>Ge</mtext>}}\text{> σ}{}_{\mathrm{<mtext>Sn</mtext>}}$. Variable temperature conductivity and magnetic susceptibility data are reported.     

Quantum chemical modeling of the adsorption of chloride ion and water molecule on group 1B metals

Quantum chemical modeling (at DFT-B3LYP level) of the adsorption of Cl^? and H₂O particles on top and into hollow sites of defect-free low index faces of copper, silver, and gold simulated by n-atomic clusters with n = 9 to 17 is carried out. The validity of simulations is confirmed by the comparison to the available literature data on the work function of the metals and the calculated gas-phase adsorption of chlorine. Relative effects of the chemical (metal nature), macrostructural (crystal face), and coordination (adsorption site) factors on the parameters of the chemisorption bond and molecular characteristics of the adsorbate and adsorbent, namely, the E _ads ads adsorption energy at % = 0K, R (Me^? Cl^?) and R(Me-O) adsorption bond lengths, Q effective charges of chlorine atom and water molecule, O-H distance and ∠HOH angle in H₂O molecule, deviation of the H₂O dipole moment vector from normal orientation to the cluster surface, and E _HOMO energies of the highest occupied molecular orbital of Me _n , [Me _n Cl]^?, Me _n H₂O, and [Me _n ClH₂O]^? clusters, are considered. The inner hydration shell of Cl^? is shown to involve six water molecules, the most stable configuration of (H₂O)₆ cluster being prism-like. An electron density shift from chlorine and water molecule to the metal cluster is found to accompany the adsorption and be more pronounced in the case of anion. The character of differences in the hydrophilicity of the group 1B metals and their diverse crystal faces is discussed. The role of hydration effects in the chemisorption of chloride ion on copper, silver, and gold is analyzed in terms of the continuum, molecular, and combined molecular-continuum models.     

Photorefractive and nonlinear optical properties of indium(III) tetra(15-crown-5)phthalocyaninate-based composites

Photoelectric, nonlinear optical, and photorefractive properties of hybrid composite materials based on polyvinylcarbazole (PVK) and indium(III) 2,3,9,10,16,17,23,24-tetra(15-crown-5)phthalocyaninate [(15C5)₄Pc]In(OH) are studied in detail. Field dependence of the quantum efficiency in a 7.8 μm-thick layer containing 5 at % [(15C5)₄Pc]In(OH) is measured. The best approximation of the quantum efficiency with Onsager’s equation corresponds to a quantum yield of thermalized electron-hole pairs φ₀ = 0.01 at initial separation r ₀ = 9.8 Å. Z-scan measurements in a nanosecond range showed that the electric susceptibility of [(15C5)₄Pc]In(OH) solution in tetrachloroethane (TCE) with a concentration of 7 × 10^?4 mol/L is χ⁽³⁾ = 1.34 × 10^?9 esu. The maximum coupling gain coefficient found for the material composed of PVK and 5 wt % [(15C5)₄Pc]In(OH) at an electric-field intensity of 200 V/μm is Γ = 80 cm^?1, and the difference between the coupling gain and absorption coefficients is Γ ? α = 70 cm^?1. The dependence of the coupling gain coefficient on the intensity ratio of interfering beams 1 and 2 (β = I ₁(0)/I ₂(0)) in a composite containing 3 wt % [(15C5)₄Pc]In(OH) is measured. An increase in β was attained by decreasing intensity of the signal beam I ₂(0) at constant intensity of the pump beam I ₁(0) = 0.15 W/cm² and E ₀ = 214 V/μm. Within the initial segment of the curve, the coupling gain coefficient increases from 30 to 60 cm^?1; then, the coefficient drops almost to the initial value. The data obtained show that the composite materials studied can be used in practice for correcting faded images. The combined analysis of the results obtained and similar data for gallium and ruthenium tetra-15-crown-5-phthalocyaninate complexes revealed the regularities in the change of the quantum yield of thermalized electron-hole pairs and the photorefractive coupling gain coefficient in a series of complexing metals: gallium(III), ruthenium(II), and indium(III). An increase in the molecular weight of the central metal atom is found to result in a substantial decrease in Γ and φ₀ due to the increase in the spin-orbit coupling constant.     

Solubilization of Crown-Substituted Magnesium Phthalocyaninates in Solutions of Salts of Bile Acids

Crown-containing Pc Mg[(B15C5O)₈Pc], Mg[(B15C5O)₄Pc], and Mg[(15C5)₄Pc] are in the monomolecular state in solutions of synthetic anionic surfactants: sodium dodecylsulfate and sodium dodecylbenzenesulfonate. In micellar solutions of bile-acid salts, molecular organization of crown-substituted Pc with different methods of introduction of crown groups into the macrocycle and their different numbers changes their state from predominantly monomeric for Mg[(B15C5O)₈Pc] in the presence of NaCl to the aggregated one in the case of Mg[(15C₅)₄Pc)]. Magnesium phthalocyaninate with annulated (15-crown-5)-fragments, Mg[(15C₅)₄Pc], is characterized by the highest sensitivity to the structure of the micelle-forming biocompatible surfactant.     

Synthesis and conductivities of (μ-cyano)phthalocyaninatometal compounds

A review of the synthesis and characterization of a new type of stacked, bridged macrocyclic metal complexes, the (μ-cyano)phthalocyaninatometal compounds [PcMCN]_n (2) is given. By using the routes described in Fig. 3 the polymers were synthesized with M = Co³⁺, Fe²⁺, Fe³⁺, Mn³⁺ and Cr³⁺ as the central metal ion. The compounds were characterized by IR, far-IR, UV, thermal and elemental analysis, and partly by ¹H NMR and FD (field desorption) mass spectroscopy.[PcCoCN] (2a) and [PcFeCN]_n (2b) exhibit d.c. room temperature conductivities around 10^?2 S/cm without doping, thereby showing conductivities which are in the same range as the iodine-doped phthalocyaninatosiloxanes [PcSiO]_n.     

Octa- and tetra-(benzo-15-crown-5)phthalocyanines in surfactant-containing solutions

The behavior of octa-(benzo-15-crown-5)phthalocyanine (H₂cr₈Pc), as well as cobalt octa- and tetra-(benzo-15-crown-5)phthalocyaninates (Cocr₈Pc and Cocr₄Pc), in aqueous solutions containing cationic or anionic surfactants, such as cetyl trimethylammonium bromide (CTAB), sodium carboxymethyl cellulose (Na-CMC), and sodium dodecyl sulfate (SDS), is studied using electronic spectroscopy. The presence of eight benzo-15-crown-5 ether fragments on the periphery of the phthalocyanine ring is shown to facilitate the dissolution of Pc in an aqueous environment. The interactions between CTAB and crown-containing Pc promotes the dissolution of H₂cr₈Pc; Cocr₈Pc; and, to a lesser degree, Cocr₄Pc, which is accompanied by the appearance of molecular aggregates, including heteronuclear cofacial dimers. The presence of a metal in the ring is not the necessary condition of the process. In microscopically heterogeneous medium, such as an aqueous SDS-containing solution, H₂cr₈Pc is present in monomeric form at SDS concentrations close to C _cr and in dimeric form at SDS content below C _cr. Under similar conditions (environment, surfactant), Cocr₄Pc can exist in monomeric form at SDS concentrations much high than C _cr. The effect of the size of cation on the form of the crown-containing Pc in an aqueous solution is illustrated by an example of H₂cr₈Pc. Na-CMC promotes the dissolution of Pc and enables one to produce K⁺/Mcr₈Pc-modified films from aqueous solutions.     

Organic metals and semiconductors: The chemistry of polyacetylene, (CH)x,and its derivatives

Polyacetylene, (CH)_x, is the simplest organic polymer. Both the cis- and trans-forms may be prepared as silvery, flexible, polycrystalline, semiconducting films. The cis-films can be stretched to over three times their original length with partial alignment of the (CH)_x fibrils. Through chemical or electrochemical doping, the electrical conductivity of the films can be increased over twelve orders of magnitude with properties ranging from insulator (σ < 10^?10 ohm^?1 cm^?1) to semiconductor, to metal (σ > 10³ ohm^?1 cm^?1). By the use of donors or acceptors, n-type or p-type polymer, respectively, is produced. When doped, the partly aligned (CH)_x film shows marked anisotropic electrical and optical properties. The more chemically oriented aspects of (CH)_x and its derivatives and those physical studies which are most illustrative of the effects of doping will be discussed.     

Effect of ternary alloying elements addition on atomic ordering characteristics of Fe–Al intermetallics

The energetic and structural characteristics of atomic ordering processes in Fe_0.5(Al_1−nX_n)_0.5 intermetallics have been qualitatively analyzed based on the statistico-thermodynamical theory of ordering by means of a quasi-chemical method combined with electronic theory in the pseudopotential approximation. The effects of ternary impurities on order–disorder phase transformation temperature and the characteristics of atomic short-range order in Fe–Al type intermetallics have been calculated. Impurity elements in Fe_0.5(Al_1−nX_n)_0.5 where X=Ni, Co, Mn, Cr, Ti, Si, Zr, Hf, Nb, Ta, Re, Mo or W, are considered up to 1 at.% concentration. The results of the calculation indicate that the impurity elements, X, with regard to their lattice site occupancy characteristics (SRO) can be divided into two groups; X_I=Ni, Co, Mn or Cr element atoms substitute mainly for Al sublattice sites, whereas X_II=Ti, Si, Zr, Hf, Nb, Ta, Re, Mo or W element atoms substitute preferentially for Fe sublattice sites in Fe_0.5(Al_1−nX_n)_0.5 intermetallics. It has been found that the absolute values of partial ordering energies of the W^Al–X(R₁) and W^Fe–X(R₁) have a profound effect on the order–disorder transition temperature of Fe_0.5(Al_1−nX_n)_0.5 alloys that would either increase or remain unchanged depending on the type and content of the ternary substitutional alloying elements. The impurities X=Zr, Hf, Nb, Ta, Re, Mo or W which are preferentially distributed Fe sublattice sites are more effective in increasing order–disorder transition temperature in Fe–Al(B2) intermetallics. The results of the present calculation are in good qualitative agreement with experimental observation for most of the third component impurity elements X in Fe_0.5(Al_1−nX_n)_0.5 intermetallics.     

Elastic Modulus Evolution and Behavior of Si/Mullite/BSAS-Based Environmental Barrier Coatings Exposed to High Temperature in Water Vapor Environment

Si-based ceramics (e.g., SiC and Si₃N₄) are known as promising high-temperature structural materials in various components where metals/alloys reached their ultimate performances (e.g., advanced gas turbine engines and structural components of future hypersonic vehicles). To alleviate the surface recession that Si-based ceramics undergo in a high-temperature environmental attack (e.g., H₂O vapor), appropriate refractory oxides are engineered to serve as environmental barrier coatings (EBCs). The current state-of-the-art EBCs multilayer system comprises a silicon (Si) bond coat, mullite (3Al₂O₃·2SiO₂) interlayer and (1 ? x)BaO·xSrO·Al₂O₃·2SiO₂, 0 ?? x ?? 1 (BSAS) top coat. In this article, the role of high-temperature exposure (1300 °C) performed in H₂O vapor environment (for time intervals up to 500 h) on the elastic moduli of air plasma sprayed Si/mullite/BSAS layers deposited on SiC substrates was investigated via depth-sensing indentation. Laser-ultrasonics was employed to evaluate the E values of as-sprayed BSAS coatings as an attempt to validate the indentation results. Fully crystalline, crack-free, and near-crack-free as-sprayed EBCs were engineered under controlled deposition conditions. The absence of phase transformation and stability of the low elastic modulus values (e.g., ~60-70 GPa) retained by the BSAS top layers after harsh environmental exposure provides a plausible explanation for the almost crack-free coatings observed. The relationships between the measured elastic moduli of the EBCs and their microstructural behavior during the high-temperature exposure are discussed.     

Heteroleptic triple-decker terbium(III) (porphyrinato)(crownphthalocyaninate) as an efficient receptor of alkaline metal cations

Peculiarities of the interaction between a heteroleptic triple-decker terbium(III) complex of a general type [Br₄TPP]Tb[(15C5)₄Pc]Tb[(15C5)₄Pc] (Tb-TD*, where Br₄TPP = 5,10,15,20-tetra-(4-bromophenyl)-porphyrin and (15C5)₄ Pc = tetra-(15-crown-5)-phthalocyanine) and potassium cations in different solvents are studied. The interaction between Tb-TD* and potassium acetate is found to proceed via either the supramolecular dimerization of the complex or the inclusion of the cations between the crown-containing molecular decks depending on the polarity of the media. From the analysis of the titration curves, the stability constant of Tb-TD* × 4K⁺ adduct in a chloroform : methanol = 1 : 1 mixture was estimated. The stability constant of the aggregate was found to exceed the known values of similar compounds by over ten orders.     

Synthesis and properties of μ-cyano(phthalocyaninato)-rhodium(III)

This contribution reports on the synthesis of μ-cyano(phthalocyaninato)rhodium(III), [PcRhCN]_n (1), by splitting off potassium cyanide from potassium(dicyano)phthalocyaninatorhodium(III), K[PcRh(CN)₂] (2). Monomeric complexes, PcRh(L)CN (7), were formed when [PcRhCN]_n (1) was treated with base molecules L, such as n-butylamine and pyridine. All compounds were characterized by IR, far-IR spectroscopy, thermal and elemental analyses, and partly by UV, ¹H-NMR and FD (field desorption) mass spectroscopy. The undoped polymer [PcRhCN]_n (1) exhibits a d.c. dark conductivity of 4 × 10^?4 S/cm, which was diminished by eight orders of magnitude when the polymeric structure was decomposed by treatment with a competing ligand.     

Bridged polysilsequioxane adsorption materials containing phosphonic acid residues

Reactions of hydrolytic polycondensation of bis(triethoxysilane) [(C₂H₅O)₃Si]₂C₂H₄ (or [(C₂H₅O)₃Si]₂C₆H₄) and functional agent (C₂H₅O)₃Si(CH₂)₂P(O)(OC₂H₅)₂ (alkoxysilanes molar ratio of 2: 1 and 4: 1, fluoride ion catalyst and ethanol solvent) yielded powder-like xerogels that contained phosphonic acid residues in the surface layer. Their treatment with boiling concentrated hydrochloric acid resulted in transformation of functional groups ≡Si(CH₂)₂P(O)(OC₂H₅)₂ into acid groups ≡Si(CH₂)₂P(O)(OH)₂. The methods of IR, ¹H MAS NMRm and ¹³C, ²⁹Si, ³¹P MAS NMR spectroscopy showed the following (1) The surface layer in the initial xerogels contains not only phosphorus functional groups, but also some non-hydrolyzed ethoxysilyl groups as well as silanol groups. (2) The hydrochloric acid treatment of the initial xerogels causes the hydrolysis of not only ethoxy groups in the phosphonic acid residues, but also most residual ethoxysilyl groups. (3) Vacuum drying of xerogels after acid treatment forms ≡Si(CH₂)₂P(O)(OH)-OSi≡ links in their surface layer (not more than 20% of phosphorus-containing groups). (4) According to ²⁹Si CP MAS NMR spectroscopic data, boiling acid treatment relatively enriches the xerogel structure T² and T³ units and accounts for the higher rigidity of the hybrid framework. These units also account for retention of the porous structure in these xerogels over time, while most initial xerogels have porous structures that collapse in 12–18 months of storage. The acid-treated xerogels were attributed to microporous adsorbents (having specific surface area of 620 to 760 m²/g). According to the AFM data, both initial and acid-treated xerogels contain almost spherical aggregates of the primary particles (globules).     

Improvement of the Electrochemical Behavior of Steel Surfaces Using a [Ti-Al/Ti-Al-N] n Multilayer System

The aim of this work is to improve the corrosion resistance of AISI D3 steel surfaces using a [Ti-Al/Ti-Al-N] _n multilayer system deposited with different periods (Λ) and bilayer numbers (n), via magnetron co-sputtering pulsed d.c. procedure, from a metallic (Ti-Al) binary target. The multilayer coatings were characterized by cross-sectional scanning electron microscopy that showed the modulation and microstructure of the [Ti-Al/Ti-Al-N] _n multilayer system. The composition of the single Ti-Al and Ti-Al-N layer films was studied via x-ray photoelectron spectroscopy, where typical signals for Ti_2p1/2, Ti_2p, N_1s, and Al_2p3/2 were detected. The electrochemical properties were evaluated by electrochemical impedance spectroscopy and Tafel polarization curves. The optimal electrochemical behavior was obtained for the [Ti-Al/Ti-Al-N] _n multilayered period of Λ = 25 nm (100 bilayers). At these conditions, the maximum polarization resistance (1719.32 kΩ cm²) and corrosion rate (0.7 μmy) were 300 and 35 times higher than that of uncoated AISI D3 steel substrate (5.61 kΩ cm² and 25 μmy, respectively). Finally, scanning electron microscopy was used to analyze the [Ti-Al/Ti-Al-N] _n multilayered surface after the corrosive attack. The improvement effects in the electrochemical behavior of the AISI D3 coated with the [Ti-Al/Ti-Al-N] _n multilayered coatings could be attributed to the number of interfaces that act as obstacles for the inward and outward diffusions of Cl^? ions, generating an increment in the energy or potential required for translating the corrosive ions across the coating/substrate interface.     

Poly(fluoroalkylsilane-b-dialkylsilane)-based chemosensory material for fluoride with high sensitivity,selectivity and solubility

Poly((i-butyl-n-decylsilane)_x-b-(methyl-3,3,3-trifluoropropylsilane)_1?x) (PSi3) was prepared using a simultaneous block copolymerization with a conventional Wurtz-type condensation reaction. The block-like polysilane copolymer showed high selectivity and sensitivity toward fluoride ion (F^?) even in the coexistence of the halide ions (Cl^?, Br^?, and I^?), and high solubility to common organic solvents with the dielectric constants (?′) between 1.88 (n-hexane) and 9.04 (benzotrifluoride). Such unique characteristics were derived from poly(methyl-3,3,3-trifluoropropylsilane) (PSi1) and poly(i-butyl-n-decylsilane) (PSi2) unit in the copolymer, respectively. In addition, sensitivity to F^? and solubility in organic solvents were successfully optimized by adjusting the composition ratio between PSi1 and PSi2 unit.     

Supramolecular assembly of sandwich-type heteroleptic lanthanum (porphyrinato)(phthalocyaninates)

Concentration and cation-induced supramolecular assembly of heteroleptic double- and triple-decker [An₄P]La[(15C5)₄Pc] and [An₄P]La[(15C5)₄Pc]La[An₄P] lanthanum complexes (An₄P²⁻ = 5,10,15,20-tetra-(4-methoxyphenyl)-porphyrinate dianion and(15C5)₄Pc²⁻ = tetra-(15-crown-5)-phthalocyaninate dianion) is studied. Double-decker [An₄P]La[(15C5)₄Pc] complex is shown to be susceptible to effective concentration-driven assembly determined by the deviation from the Beer-Lambert-Bouguer law up to a concentration of 10⁻⁶ M. Triple-decker [An₄P]La[(15C5)₄Pc]La[An₄P] complex is not inclined to the concentration-driven assembly up to a concentration of 10⁻⁴ M. The interaction between the receptors and sodium or potassium salt is determined by the receptor structure and independent of the salt anion. When interacting with potassium salts, the double-decker complex can form a supramolecular cofacial dimer. In the case of the triple-decker complex, the crown-phthalocyanine deck of the molecule is sterically blocked, and supramolecular aggregates do not form. Sodium cations can be encapsulated in the crown ether rings of both receptors.     

Synthesis,electrochemical and spectroelectrochemical properties of highly soluble tetra substituted phthalocyanines with [4-(thiophen-3-yl)-phenoxy]

Zinc, oxo-titanium, cobalt, and manganese phthalocyanine derivatives substituted with nonperipheral 3-(tetra[4-(thiophen-3-yl)-phenoxy] moieties have been synthesized and characterized by elemental analysis, IR, ¹H NMR spectroscopy, electronic spectroscopy, and mass spectra. The compounds have good solubility in various polar and nonpolar organic solvents and not aggregated (in the same solvents) within a wide concentration range. Electrochemical and spectroelectrochemical measurements exhibit that incorporation redox active metal centers, Co^II, Ti^IVO and Mn^IIIOAc into the phthalocyanine core extend the redox richness of the Pc ring with the reversible metal-based reduction and oxidation couples of the metal centers in addition to the common Pc ring-based electron transfer processes.     

High resolution solid-state 13C CPMAS study of neutral and partially oxidized aluminium polyfluorophthalocyanines

This paper reports a high resolution solid-state ¹³C CPMAS study of the low dimensional phthalocyanine (Pc = C₃₂H₁₆N₈) conductors (PcAlF)-(MoF₆)_0.38, (PcAlF)(IF₅)_0.43 and (PcAlF)(XeF₂)_0.35 as well as the precursor (PcAlF)_n. This study confirms that the stacking configuration of Pc rings along polymeric chains of neutral polymer is eclipsed. The four inequivalent carbon sites resulting from this structure are clearly separate and identified. From this study it is concluded that intrachain disorder is more extended in MoF₆- and IF₅-doped compounds than in the XeF₂-doped one.     

Study of chemically (AsF5) and electrochemically doped aluminium polyfluorophthalocyanine, (PcAlF)n

Chemical AsF₅ and electrochemical AsF₆^? doping of aluminium polyfluorophthalocyanine, (AlPcF)_n, has been studied. Thermogravimetric analysis, infrared spectroscopy, X-ray diffraction and electrical conductivity measurements were used to characterize the doped materials. Particular attention has been devoted to the study of the most heavily doped samples obtained in the first case (between 4 and 5 AsF₅ molecules per phthalocyanine ring). A qualitative structural model is proposed to explain the low electrical conductivity of these samples. Results are compared with those for iodine-doped (AlPcF)_n and (GaPcF)_n.Cyclic voltammetry performed on polymer films revealed the existence of two oxidation peaks. While it is very likely that the second peak is accompanied by a chemical reaction taking place at the polymer electrode, it is possible to obtain a lightly AsF₆^?-doped sample for applied potentials lower than 0.6 V (versus Ag/Ag⁺). Very similar results are obtained with BF₄^? and ClO₄^? doping anions.     

Synthesis and characterization of ɛ-VOPO4 nanosheets for secondary lithium-ion battery cathode

Vanadium (III) phosphate monoclinic VPO₄·H₂O was synthesized hydrothermally. The ?-VOPO₄ nanosheets, formed by the oxidative de-intercalation of protons from monoclinic VPO₄·H₂O, can reversibly react with more than 1 mol lithium atoms in two steps. Crystal XRD analysis revealed that the structure of the ?-VOPO₄ nanosheets is monoclinic with lattice parameters of α=7.2588(4) Å, b=6.8633(2) Å and c=7.2667(4) Å. The results show that the ?-VOPO₄ nanosheets have a thickness of 200 nm and uniform crystallinity. Electrochemical characterization of the ?-VOPO₄ monoclinic nanosheets reveals that they have good electrochemical properties at high current density, and deliver high initial capacity of 230.3 mA·h/g at a current density of 0.09 mA/cm². Following the first charge cycle, reversible electrochemical lithium extraction/insertion at current density of 0.6 mA/cm² affords a capacity retention rate of 73.6% (2.0–4.3 V window) that is stable for at least 1000 cycles.     

Azomethine-based phenol polymer: Synthesis,characterization and thermal study

Azomethine-based phenol polymer, poly-2-{[(6-aminopyridin-2-yl)imino]methyl}-phenol (PAPIMP), was synthesized through the combination of condensation reaction and oxidative polymerization. Polymer isolated from aqueous solution was characterized by UV–vis, FT-IR, NMR and TG, SEC analysis. According to the SEC chromatograms, the number-average molecular weight (M_n), weight-average molecular weight (M_w) and polydispersity index (PDI) values of PAPIMP were determined to be 33,550, 78,900 g mol^?1 and 2.352, respectively. Also, optical band gaps (E_g) of APIMP and PAPIMP calculated from cyclic voltammetry (CV) measurements. Also, electrical conductivities of each component measured with four-point probe technique. TG analysis showed that PAPIMP was stable up to 300 °C. The thermal decomposition kinetics of PAPIMP was investigated by means of thermogravimetric analysis in dynamic nitrogen atmosphere at four different heating rates: 5, 10, 15 and 20 °C min^?1. The apparent activation energies for thermal decomposition of PAPIMP were obtained by Tang, Flynn–Wall–Ozawa (FWO), Kissenger–Akahira–Sunose (KAS) and Coats–Redfern methods (CR) were 96.97, 105.33, 97.28 and 88.60 kJ mol^?1, respectively; the mechanism function and pre-exponential factor were determined by master plots method. The most likely decomposition process was a D_n Deceleration type in terms of the Coats–Redfern and master plots results.